we are tyco integrated security. and we are sharper. >>> i'm jake tapper alongside brooke baldwin in boston for special live coverage of the investigation into the boston marathon terrorist attacks. >> live during this hour, a lot happening here in the city of boston. in just about 15 minutes from now, this city will stand still along with the white house at the precise moment when the two bombs went off, about a block from where we're standing here in copley square. remember, this was the middle of boston, the end of boston's most famous race, the iconic marathon. it happened this very hour exactly one week ago. so today, of course, they will be honoring the four victims and the dozens wounded in last monday's attacks. >> we now know the surviving suspect, dzhokhar tsarnaev, has been charged while he lays badly wounded in his hospital bed here in boston. one of the charges using a weapon of mass destruction. all this as bostonians are back at work today, trying to find some semblance of normality after a deadly bomb